CalledUnofficial results
Iowa Senate District 1
Iowa State Senate · Iowa
Catelin Drey won re-election by 14.9 points over Christopher Prosch.
Staggered Senate
Catelin DreyDemocrat · winner · incumbent
57.4%9,768
Christopher ProschRepublican
42.5%7,235
Write-inOther party
0.1%11
17,014 votes
Source: Iowa Secretary of State unofficial resultsUpdated Nov 7, 2026, 1:35 PM ET
Where the race moved
Against the 2024 presidential vote
The seat's recent races
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)
Money in this race
Each line compares the two campaigns on one scale.
Catelin DreyChristopher Prosch
$372.8K
Raised by the campaign
$240.6K
$192.5K
Spent by the campaign
$25.9K
Campaign money: Iowa Ethics and Campaign Disclosure Board, through May 27, 2026; Iowa Ethics and Campaign Disclosure Board, through Jan 13, 2026.
Source: Iowa Ethics and Campaign Disclosure Board campaign filingsUpdated May 27, 2026
Pre-election forecast (final, Nov 3)
Our model's last run before Election Day, Nov 3, 2026. It no longer updates.
- Catelin Drey
- 82%
- Christopher Prosch
- 18%
- Projected margin
- D+6.9
The candidates
Catelin Drey (D)
Incumbent, Iowa State Senate, first elected 2025Christopher Prosch (R)
Incumbent, Iowa State Senate, first elected 2025Christopher Prosch (R)
Also on the ballot: Write-in (Other party), 0.1%